US11446122B2 - Dental abutment core and method for manufacturing a dental abutment - Google Patents
Dental abutment core and method for manufacturing a dental abutment Download PDFInfo
- Publication number
- US11446122B2 US11446122B2 US16/626,852 US201816626852A US11446122B2 US 11446122 B2 US11446122 B2 US 11446122B2 US 201816626852 A US201816626852 A US 201816626852A US 11446122 B2 US11446122 B2 US 11446122B2
- Authority
- US
- United States
- Prior art keywords
- pillar
- dental abutment
- shoulder
- cross
- dental
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/0077—Connecting the upper structure to the implant, e.g. bridging bars with shape following the gingival surface or the bone surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0022—Blanks or green, unfinished dental restoration parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
Definitions
- This invention belongs to the field of tools used by dentists for operating in dental tissue, in order to place implants or similar operations.
- Dental abutments usually comprise a core and a custom body.
- the core has the means for attaching the dental abutment to an implant placed in the patient's jaw, while the custom body has the suitable shape of the subgingival, cervical and supra-gingival portion of the dental piece which is to be inserted.
- the core usually comprises a prosthetic connection, a shoulder and a pillar.
- the prosthetic connection is intended to be attached to a corresponding connecting piece located in the implant present in the patient's jaw.
- the shoulder is a cylindrical section of variable cross section, located between the prosthetic connection and the pillar, and which has an equal or greater diameter near the pillar than near the prosthetic connection.
- the pillar is the part of the core where the custom body is intended to be fixed.
- abutment refers to abutments that can be used for supporting implant prostheses but also to healing abutments used for soft tissue sculpting around implants during the phase of peri-implant soft tissue maturation and adaptation.
- these anti-rotational means have a shape so that the custom body is fixed before installing the whole dental abutment to the implant in the patient's mouth. This sometimes leads to positioning errors and require a correction, but this correction cannot be made, since the custom body is fixed due to the anti-rotational means.
- the second portion does not need to be circular, so the outer diameter of the first portion is compared with a cross section dimension of the second portion.
- This cross section dimension is an equivalent to the outer diameter: is the distance between two points belonging to the outer surface of this second portion.
- the protrusion is an annular protrusion.
- a complete circumferential protrusion is not needed, but is preferred, thus providing a complete support for the cap.
- the protrusion is located adjacent to the first portion of the pillar.
- the whole second portion and third portion are covered by the cap when it rests on the protrusion, thus avoiding biocompatible material to reach them in the manufacturing process.
- the first portion comprises a first sub-portion adjacent to the shoulder and a second sub-portion with a circular and lower cross section than the cross section of the first sub-portion.
- the invention provides a method of manufacturing a dental abutment comprising the steps of
- This method allows manufacturing a dental abutment with a custom body which may rotate with respect to the dental abutment core, but without exiting it. This is useful when a dental practitioner needs to adjust the orientation of the custom body when the abutment core is fixed.
- the dental abutment core is provided in a moulding apparatus, and the provision of biocompatible material is performed by pouring this biocompatible material in a fluid state in the moulding apparatus, and further curing the biocompatible material so that it becomes the custom body.
- the method further comprises the step of applying a lubricant agent on the first portion of the pillar before pouring the biocompatible material.
- This lubricant agent will ease the rotation movement of the custom body around the abutment core.
- the cap rests on a protrusion of the second portion of the pillar when it is placed covering the third portion of the pillar.
- the method further comprises the step of rotating the custom body until it reaches an optimal position before providing the material for covering the space.
- the dental practitioner may fill de gap between the custom body and the core pillar and fix the position of the custom body by means of the anti-rotational means.
- the step of rotating the custom body is carried out inside a patient's mouth or in a working dental cast.
- the invention provides a dental tools system suitable for carrying out the steps of a method according the previous inventive aspect, the dental tools system comprising
- FIG. 1 shows a view of a dental abutment core according to the invention.
- FIG. 2 shows a detailed front view of a dental abutment core according to the invention.
- FIGS. 3 a -3 e show some method steps of manufacturing a dental abutment according to the invention.
- FIG. 4 shows a final dental abutment according to the invention.
- FIG. 1 shows a general view of an embodiment of a dental abutment core according to the invention.
- This dental abutment core 1 comprises a prosthetic connection 2 , a pillar 4 , a shoulder 3 and a core axis 10 .
- the shoulder 3 is located between the prosthetic connection 2 and the pillar 4 , and comprises a first base 31 adjacent to the prosthetic connection 2 and a second base 32 greater than the first base 31 adjacent to the pillar 4 .
- the core axis 10 is in turn perpendicular to the first base 31 and the second base 32 .
- This dental abutment core 1 is for being used in an abutment for forming the gingival tissue around implants.
- FIG. 2 shows a detailed front view of the dental abutment core shown in the previous figure.
- the pillar 4 comprises anti-rotational means 431 , 432 for preventing a custom body from rotating with respect to the dental abutment core 1 .
- the anti-rotational means comprises a plurality of slots 432 and protrusions 431 , all of them being oriented according to the core axis 10 .
- the aim of these anti-rotational means 431 , 432 is preventing the dental abutment core 1 from rotating with respect to a custom body which may be adapted to it.
- the pillar 4 comprises a first portion 41 adjacent to the shoulder 3 , a second portion 42 adjacent to the first portion 41 , and a third portion 43 farthest from the shoulder 3 .
- the anti-rotational means 431 , 432 are located in said third portion 43 of the pillar 4 .
- Each portion has a cross section surface, the cross section surface of the first portion 41 is circular and has an outer diameter which is lower than a cross section dimension of the second portion.
- the second portion does not need to be circular, so the outer diameter of the first portion is compared with a cross section dimension of the second portion.
- This cross section dimension is an equivalent to the outer diameter: is the distance between two points belonging to the outer surface of this second portion.
- the first portion 41 comprises a first sub-portion 411 adjacent to the shoulder 3 and a second sub-portion 412 with a circular and lower cross section than the cross section of the first sub-portion 411 .
- the second portion 42 further comprises a circumferential protrusion 421 .
- This circumferential protrusion 421 is intended for a cap to rest on it. This provides a singular advantage: a cap may rest on a point which is upper than the first portion, so that a biocompatible material poured on a cap according to these particular embodiments will reach the first portion of the pillar but will not reach the second and third portion of the pillar.
- FIGS. 3 a -3 e show some method steps of manufacturing a dental abutment according to the invention.
- FIG. 3 b shows a second step of this method, where a cap 5 is placed covering the second and third portion of the pillar (not seen). This cap 5 rests on the protrusion 421 of the second portion of the pillar.
- FIG. 3 c shows a third step of this method, where a biocompatible material 6 is poured in a fluid state in the moulding apparatus 200 , so that the biocompatible material reaches the first portion of the pillar, but does not reach the second portion or the third portion of the pillar due to the interposition of the cap 5 .
- the biocompatible material 6 is cured, it becomes a custom body.
- FIG. 3 d shows a fourth step of this method, where the cap is removed, so that the third portion 43 of the pillar is surrounded by a space 7 absent of custom body 61 .
- This custom body 61 is able to rotate around the first portion of the pillar, due to the circular shape of this first portion and helped by the lubricant agent which had been applied in a previous stage.
- the custom body 61 may not exit the pillar 4 , being safely retained around it.
- FIG. 4 shows a final dental abutment 100 which has been manufactured according to a method described above.
- This dental abutment 100 comprises a dental abutment core 1 and a custom body 61 .
- the custom body 61 may not rotate with respect to the dental abutment core 1 since the custom body 61 is now in connection with the anti-rotational means comprised in the dental abutment core 1 .
Abstract
Description
-
- a prosthetic connection;
- a pillar comprising anti-rotational means for preventing a custom body from rotating with respect to the dental abutment core; and
- a shoulder located between the prosthetic connection and the pillar, the shoulder being intended to be in contact with gingival tissue and comprising a first base adjacent to the prosthetic connection and a second base equal or greater than the first base adjacent to the pillar;
- a core axis perpendicular to the first base and the second base;
-
- the pillar comprises a first portion adjacent to the shoulder, a second portion adjacent to the first portion, and a third portion farthest from the shoulder, wherein a cross section of at least part of the first portion being circular and having an outer diameter which is lower than a cross section dimension of the second portion, and wherein the anti-rotational means are comprised in the third portion.
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- providing a dental abutment core according to the first inventive aspect;
- placing a cap covering the second portion and the third portion of the pillar;
- providing a biocompatible material so that the biocompatible material reaches the first portion of the pillar, but does not reach the second portion and the third portion of the pillar due to the interposition of the cap, so that the biocompatible material becomes a custom body;
- removing the cap, so that the second portion and the third portion of the pillar is surrounded by a space absent of custom body;
- providing a material covering the space so that the custom body is fixed to the pillar.
-
- a dental abutment core according to the first inventive aspect;
- a cap suitable for covering the second portion and the third portion of the pillar;
- a custom body coupled to the first portion of the pillar of the dental abutment core.
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GR20170100383A GR20170100383A (en) | 2017-08-21 | 2017-08-21 | Dental abutment core and method for manufacturing a dental abutment |
GR20170100383 | 2017-08-21 | ||
PCT/IB2018/055593 WO2019038610A1 (en) | 2017-08-21 | 2018-07-26 | Dental abutment core and method for manufacturing a dental abutment |
Publications (2)
Publication Number | Publication Date |
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US20200222155A1 US20200222155A1 (en) | 2020-07-16 |
US11446122B2 true US11446122B2 (en) | 2022-09-20 |
Family
ID=63364115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/626,852 Active 2039-04-29 US11446122B2 (en) | 2017-08-21 | 2018-07-26 | Dental abutment core and method for manufacturing a dental abutment |
Country Status (5)
Country | Link |
---|---|
US (1) | US11446122B2 (en) |
EP (1) | EP3672518B1 (en) |
CY (1) | CY1124581T1 (en) |
GR (1) | GR20170100383A (en) |
WO (1) | WO2019038610A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10136974B2 (en) | 2014-06-13 | 2018-11-27 | Vp Innovato Holdings Ltd | Molds for custom dental implant abutments and impression posts |
GR20170100383A (en) | 2017-08-21 | 2019-04-22 | Vp Innovato Holdings Ltd | Dental abutment core and method for manufacturing a dental abutment |
GR1010564B (en) * | 2023-05-16 | 2023-10-31 | Vp Innovato Holdings Ltd, | Intermediate abutment for prosthesis installation |
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US20200222155A1 (en) | 2020-07-16 |
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EP3672518A1 (en) | 2020-07-01 |
WO2019038610A1 (en) | 2019-02-28 |
GR20170100383A (en) | 2019-04-22 |
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